Date time

Python date time comparison:
For python date time comparison you can directly compare between two date and also make some mathematical operation

import datetime
import time
before=datetime.datetime.now()
print "before "+str(before)
time.sleep(5)
after=datetime.datetime.now()
print "after "+str(after)
difference=after-before
print "difference "+str(difference)

before 2011-07-21 15:38:13.330000
after 2011-07-21 15:38:18.347000
difference 0:00:05.017000